.button {
  width: 100px;
  height: 40px;
  border: 1px solid #eee;
  color: #999;
  border-radius: 4px;
  display: inline-block;
  text-align: center;
  line-height: 40px;
  box-shadow: 2px 2px 10px #ccc;
  cursor: pointer;
  user-select: none;
}

.button.active {
  background: #069;
  color: #fff;
  border-color: #069;
}

.button.block {
  display: block;
  width: 100%;
}